Purification technology of manninotirose in Rehmanniae Radix Praeparata by D-101 microporous adsorption resin End point determination by HPLC chromatographic fingerprint in processing prepared Rehmannia Change of oligosaccharide and catalpol contents in Rehmanniae Radix at various processing phases Change of oligosaccharide and catalpol contents in Rehmanniae Radix at various processing phases Advances in studies on processing origin and finishing pointof Rehmanniae Radix Preparata Study on preparation technology of nano spray drying for Rehmanniae Radix oligosaccharide micro-powders Effect of concentration of catalpol and 5-hydroxymethyl-2-furaldehyde from processing of Rehmanniae Radix Establishment of HPLC-DAD multi-wavelength chromatographic fingerprints of Rehmanniae Radix and its application in processing Rehmanniae Radix Praeparae Study on mechanism of combined administration of Coptidis Rhizoma and Rehmanniae Radix in treating type Ⅱ diabetes mellitus Advances in studies on processing origin and finishing point of Rehmanniae Radix Preparata Thoughts and methods of Chinese materia medica processing—Taking research on Rehmanniae Radix processing as an example Content changes of chemical components and their effect of adjuvants during the process of Rehmanniae Radix Praeparata(steamed for nine times and shined for nine times)